The Foreign Owner's Annual Compliance Calendar 2026: Tax, Visa, Reporting

The Rules That Drive the Calendar

Foreign owners in Thailand do not have one single annual compliance filing. They have a stack of small obligations that sit across the local district office, the Revenue Department, Immigration, the condominium juristic person, banks, and the Land Office. Missing one deadline rarely destroys ownership by itself, but it can create fines, surcharge, blocked visa services, delayed transfers, or a weak paper trail when the property is sold or inherited.

The most important tax rhythm is annual. Thai personal income tax is calculated on a calendar-year basis, rental income is assessable income, rent withholding tax is commonly 5% when the payer is required to withhold, and the normal PIT filing deadline is the last day of March after the tax year. Owners who sell should also model transfer taxes, withholding tax, and specific business tax before signing; our capital gains calculator and transfer fee calculator are built for that pre-sale estimate.

The second rhythm is immigration. TM30 is triggered by arrival at a residence and is normally the host or housemaster's 24-hour notification. TM47 is the 90-day address report for foreigners who stay continuously in Thailand. Retirement extensions, LTR, Thailand Privilege or Elite, and DTV users each have different stay-permission mechanics, so use the calendar as a reminder to check the stamp and the next action date, not as a substitute for your passport.

The third rhythm is reporting and evidence. Keep the Foreign Exchange Transaction form, bank credit advice, condominium foreign-quota letter, title deed copy, AGM notice, common-fee receipts, insurance schedule, lease, invoices, and tax filings in one archive. These documents matter later for a sale, refinance, inheritance, or estate plan. If the property is intended to pass to family, pair this checklist with our guides to foreign-owner inheritance and Thai wills for foreign owners.

January: Reset The File

Tax

Open a 2026 folder and save every rental receipt, platform payout statement, juristic common-fee invoice, repair invoice, insurance receipt, mortgage-interest certificate, and bank statement. Rental income is assessable income under the Revenue Department's PIT framework, and the end-March filing deadline arrives quickly. If you rent to a company, school, serviced-apartment operator, or other payer that withholds tax, request the withholding certificate now rather than in March.

Check the 1 January property status for Land and Building Tax. Local authorities use annual ownership and use classifications, so note whether the unit is personal residence, rented, vacant, or commercial. Run an estimate in /tools/land-tax-2569, then wait for the official local assessment notice before paying.

Visa

Record the date of your latest entry stamp, extension expiry, re-entry permit, and next 90-day report. If you left Thailand and came back, confirm whether your TM47 clock restarted and whether your TM30 was filed for the current address. Do not rely on a lease or juristic registration alone; Immigration looks for the active residence notification.

Reporting

Create a compliance archive with passport pages, title deed copy, purchase agreement, FET form or bank foreign-remittance certificate, foreign-quota letter, transfer tax receipt, and current lease. If you hold through a structure, review our comparison of BOI, Thai company, and foreign quota ownership vehicles before making changes.

February: Tax Evidence And Visa Windows

Tax

Ask your accountant or tax preparer whether rental repairs are supported by invoices and whether any withholding tax certificates are missing. If your tenant is a withholding agent and deducted 5% rent withholding tax, the certificate should become a tax credit in your annual filing. If no withholding was done because the tenant is an individual, you still need to capture gross rent and deductible expenses.

Visa

Retirement-extension holders should start building the bank-balance evidence at least three months before renewal. LTR holders should check whether their endorsement documents are still current, while Thailand Privilege members should confirm whether a 12-month stay extension or a new five-year visa sticker is coming up. DTV holders should track the 180-day stay permission and extension assumptions carefully because the visa validity and each admitted stay are different concepts.

Reporting

Condo owners should ask the juristic office for the expected AGM month, audited accounts, sinking-fund status, insurance renewal date, and any special assessment proposals. If the building is in Bangkok or a high-PM2.5 province, add maintenance checks for filters, balcony seals, and tenant communications; our PM2.5 property buyer guide explains why this is now a practical ownership issue, not just a lifestyle issue.

March: PIT Deadline Month

Tax

File Thai PIT for 2025 rental income by 31 March 2026 if you are required to file on paper or through the normal annual deadline. The Revenue Department says PIT is filed and paid by the last day of March after the taxable year. Online e-Filing windows are sometimes extended beyond 31 March; use the RD e-Filing portal for the exact 2026 online cutoff before assuming extra days.

The penalty for a late PIT return can include a fine up to THB 2,000 and a surcharge of 1.5% per month on unpaid tax. Owners selling property should also model withholding tax at transfer and other sale-side fees before signing a contract. Use /tools/capital-gains for a quick estimate, then verify with the Revenue Department and Land Office.

Visa

March is a good month to check whether your next TM47 report falls during April travel. Online TM47 can be submitted before the due date during the official online window, and the system may reject incomplete or premature filings. If you plan to leave Thailand, confirm whether a re-entry permit is needed to preserve your stay permission.

Reporting

Keep the filed PIT return, payment receipt, and any withholding certificates in the same folder as the lease. If you own with a spouse, heir, company, or lender, send them the filed copy. Future disputes are easier to solve when the tax record is not trapped in one person's email account.

April: AGM And Songkran Travel Checks

Tax

After filing PIT, reconcile the final tax paid against bank withdrawals and receipts. If you sold or transferred property in the first quarter, collect the Land Office tax receipts immediately and save a scan. For future sale planning, compare the title route in leasehold versus freehold land structures before assuming the same tax treatment applies to every asset.

Visa

Songkran travel makes April a TM30 risk month. If you leave Thailand and return to your own condo, your housemaster, landlord, or property manager should file TM30 within 24 hours of arrival unless local practice and your facts clearly say otherwise. If a hotel files for you during a trip, that does not necessarily update the residence record for your home condo when you return.

Reporting

Many condominium juristic persons schedule ordinary general meetings within the first 120 days after their accounting year ends. Read the agenda, proxy form, audited accounts, major repair plan, insurance coverage, and foreign-owner communications. Missing the AGM does not fine you personally, but it can cost you voting rights on budget, repairs, litigation, or manager changes.

May: 2026 Land-Tax Notices

Tax

For the 2026 Land and Building Tax cycle, local assessment notifications were extended into May 2026. When the notice arrives, check the owner name, address, title details, appraised value, use classification, and exemption assumptions. If the unit is rented but classified incorrectly, or vacant but actually occupied, deal with the local authority quickly before the payment window.

Where to act: the local district office, municipality, subdistrict administrative organization, or Bangkok district office responsible for the property. Penalty: late payment can produce surcharge and interest, and the authority can issue reminders and collection steps. The BaanRow land-tax 2569 tool helps you sanity-check the amount, but the local notice controls the payable figure.

Visa

May is a good checkpoint for long-stay holders whose annual extension falls in the second half of the year. Retirement holders should verify seasoning rules for bank funds, LTR holders should review BOI endorsement conditions, and Thailand Privilege members should book any visa-affixing or extension service early. Use /tools/visa-roi if you are comparing annual extension friction against LTR, Elite, DTV, or retirement pathways.

Reporting

Confirm that your FET form is still readable and stored in both paper and cloud form. If the bank issued a credit advice rather than a formal FET because of transaction size or bank process, keep the full remittance chain. For a foreign-quota condo sale, the Land Office will care about source-of-funds evidence and the building's foreign quota at transfer.

June: Mid-Year Rental And Visa Audit

Tax

Run a half-year rental-income review. List January-to-June gross rent, withheld tax, platform fees, repairs, common fees, insurance, agent fees, and vacancy periods. If the numbers show a likely taxable profit, set aside cash now so the March 2027 filing is not a surprise.

Visa

Check whether your TM47 due date lands in June or July. Online TM47 is not a same-day emergency tool; submit within the permitted window and keep the receipt in your passport or digital archive. If the online system rejects the filing, go to the local Immigration office before the due date rather than waiting for the problem to age.

Reporting

Ask the juristic person for a mid-year common-fee statement and any arrears confirmation. Buyers routinely ask for a no-debt letter before transfer, and a small unpaid balance can delay signing. If you plan to sell in Q3 or Q4, start the foreign-quota verification process early and check our transfer fee calculator against the broker's net-proceeds sheet.

July: Land-Tax Payment Month

Tax

For 2026, the government extended the land-tax payment timeline, with July functioning as the key payment month for the first or full payment depending on the local notice and installment choice. Pay through the channel stated on the assessment notice and keep the official receipt. If paying by bank transfer, save the slip and ask whether the local authority needs any separate confirmation.

Where to act: local district office, municipality, subdistrict administrative organization, or Bangkok district office. Penalty: missed payment can lead to surcharge, interest, and collection notices. If your address abroad means notices arrive slowly, ask the juristic office or manager to watch for official letters.

Visa

Summer travel creates two practical risks: forgetting a re-entry permit and returning to a stale TM30. Before leaving, check whether your stay permission survives departure. After returning, confirm your home-address notification is current before a 90-day report, extension, or visa-affixing appointment.

Reporting

July is a good month to update your buyer/seller file. Save land-tax payment proof, common-fee receipts, AGM minutes, insurance schedule, and lease renewal. If ownership is intended to stay in the family, review beneficiary and executor assumptions alongside the foreign-owner death and inheritance guide.

August: Installment And Reminder Month

Tax

If you chose the 2026 land-tax installment route, August is the second installment month under the extended timetable. If you missed July, expect reminders or local follow-up. Do not ignore a small amount; the administrative drag is often worse than the tax itself.

Visa

August is a useful month for retirement-extension holders to confirm bank-book updates and address documents. LTR holders should check whether annual reporting or five-year permission milestones apply to their category and issue date. Thailand Privilege members should confirm whether a 90-day report is still required even if the membership service assists with logistics.

Reporting

Ask the condo juristic person whether any capital works approved at the AGM are now billed. Special assessments, lift repairs, facade work, and litigation reserves should go into your net-yield model. BaanRow's ownership-vehicle guide can help frame whether a future purchase should remain simple foreign quota or use a different legal route.

September: Half-Year Tax And Final Installment

Tax

Some taxpayers with certain types of income during the first six months may need a half-year PIT filing by the last day of September. Ask your accountant whether your rental structure triggers a half-year filing obligation. September is also the final installment month for the extended 2026 land-tax schedule if you used the three-installment route.

Penalty: unpaid tax can accrue surcharge, and late filings can attract fines. Form/tool/office: Revenue Department e-Filing, local Revenue office, and your local land-tax office. Keep the half-year return or professional advice memo even if the conclusion is that no filing is required.

Visa

Check the fourth-quarter travel calendar against your TM47 due date. If you plan to be outside Thailand on the due date, confirm whether the departure resets the report clock when you return. If you remain in Thailand, file within the permitted window and keep the receipt.

Reporting

Owners preparing to sell in high season should order a fresh foreign-quota letter and no-debt confirmation close enough to transfer to be accepted by the Land Office. Foreign-quota availability can change as other units transfer, so do not rely on an old sales brochure or a broker's verbal confirmation.

October: Title, Quota, And Insurance File

Tax

Begin a year-end tax estimate using actual rent through September and expected rent through December. Check whether repairs were capital improvements or deductible expenses, and whether tenant deposits are income, security deposits, or partly applied to rent. If you may sell before year-end, compare net proceeds after Land Office withholding, specific business tax, stamp duty, transfer fee, agent commission, and mortgage payoff.

Visa

If your annual extension expires in December or January, October is not too early to start. Check passport validity, bank letters, photos, lease or ownership documents, TM30, map, and income evidence. Missing an extension deadline can lead to overstay fines and more serious immigration consequences, so treat the date in your passport as the controlling deadline.

Reporting

Refresh your insurance and title file. Keep building insurance from the juristic person separate from contents, landlord, and personal liability insurance. If your ownership plan depends on long lease rights rather than freehold condo quota, revisit the leasehold/freehold guide before renewing or assigning rights.

November: Visa Renewal Runway

Tax

Ask for year-to-date tenant statements and withholding certificates before tenants disappear into December travel. If you use an agent, require a ledger that separates rent, management fee, platform fee, cleaning, repairs, deposits, and owner remittance. This prevents the March filing from becoming a forensic accounting exercise.

Visa

Retirement holders should confirm the exact renewal appointment date and evidence list with the local Immigration office. LTR holders approaching a five-year permission milestone should apply for BOI qualification endorsement in time; the BOI announcement requires action before the current permission expires. Thailand Privilege members needing a new visa sticker should book with the program before expiry, and DTV holders should track whether they need an extension, departure, or fresh plan.

Reporting

Prepare the sale and inheritance document set even if you do not plan to sell. The core folder should include passport copy, title deed, FET or remittance evidence, transfer receipts, land-tax receipts, common-fee no-debt history, lease, PIT filings, and will or estate-planning notes. The companion guide on Thai wills explains why foreign owners should not leave the document map until a family emergency.

December: Close The Year

Tax

Close the 2026 tax file by 31 December. Export rent ledgers, save invoices, chase missing withholding certificates, reconcile deposits, and note any unpaid rent. If the property was vacant, record the vacancy dates and evidence, because they affect yield analysis and may matter for future local-tax classification.

Visa

Before holiday travel, check re-entry permits, TM30 responsibility on return, and whether the next TM47 report falls during your trip. If a family member or manager handles filings for you, give them passport-page scans and clear written authority in advance. Immigration queues in late December and early January are a poor place to discover a missing document.

Reporting

Review whether 2026 changed your ownership strategy. If costs rose, use BaanRow's tools to compare holding, renting, and selling. If you are considering another purchase, search current listings through BaanRow search and test the visa economics in the visa ROI tool before committing to a long-stay plan.

Downloadable PDF Calendar

Sources & References