Debt Confirmation Letter

What this document is

A debt confirmation letter is a signed statement confirming the current position of an existing loan: who owes whom, the outstanding balance on a stated date, and the payments made so far. Lenders and borrowers exchange it to make sure both sides agree on the numbers, typically after a run of partial payments, a long quiet period, or when receipts have gone missing and the running balance has become fuzzy.

It differs from a debt acknowledgment, which usually puts an undocumented debt in writing for the first time. A confirmation letter updates the record of a loan that already has history: it consolidates months of payments into one agreed figure and restates that the original terms remain in force. Think of it as a bank statement for an informal loan, signed by both people instead of printed by a bank.

When to use it

• A loan has been repaid irregularly for a year, receipts are patchy, and both sides want to fix the agreed balance at THB 42,000 as of a stated date.
• Lender and borrower are about to negotiate a settlement or new repayment plan and need an agreed starting number.
• A long gap in contact has passed and the lender wants the borrower's fresh written confirmation that the debt still stands.
• The original loan paperwork was lost and both parties want a signed document capturing the loan's terms and current balance.
• A lender is organising records, for personal accounting or an estate, and wants each open loan confirmed in writing.

When not to use it

• There has never been anything in writing at all. A debt acknowledgment is the better first document for putting the debt itself on record.
• The parties genuinely disagree on the balance. Reconcile receipts and transfers first; a confirmation letter records agreement, it does not manufacture it.
• You need to change the terms, such as the schedule or interest. That is a loan amendment agreement, not a confirmation.
• The borrower is being pushed to sign a figure they have not checked. A rushed confirmation collapses the first time it is questioned.

Information you will need

• Full names and ID details of the lender and the borrower
• Reference to the original loan: date, amount, and any written agreement
• The confirmation date the balance is calculated to
• The outstanding balance on that date, in numbers and words
• A summary of payments made to date: total repaid, and dates of key payments if useful
• Confirmation that the original terms, including any interest and schedule, remain in force
• Any agreed corrections, such as a payment previously missed from the record
• Date and place of signing, with both signatures

Clauses included

How to sign it

Both parties should sign, because the letter's entire value is mutual agreement on the number. A confirmation signed only by the lender is just the lender's opinion; the borrower's signature is what turns it into a shared fact.

Reconcile before signing, not after. Sit down with the transfer slips, receipts, and chat history, walk through the arithmetic together, and only then write the confirmed figure. Ten minutes of reconciliation prevents the letter from becoming the next thing you argue about.

Each side keeps a signed copy filed with the original loan documents. If the loan continues for years, repeating the exercise annually keeps the record permanently current, and each new confirmation quietly supersedes the guesswork that would otherwise accumulate.

Common mistakes

• Signing a balance nobody actually recalculated, embedding an old error into a fresh document.
• Leaving out the as-of date, which makes the figure meaningless once the next payment happens.
• Using a confirmation letter to quietly change the interest rate or schedule, which belongs in a signed amendment instead.
• Only the lender signing, so the borrower never actually agreed to the number on the page.
• Ignoring a payment the borrower claims to have made instead of resolving it before signing.
• Treating the letter as a replacement for receipts going forward, rather than resuming proper payment records after it.

Frequently asked questions