Six years of statements, two closed banks and a dead building society

Figures relate to tax year 2025-26 (UK) · 2025 (US)

People put off a catch up filing for years because of one sentence they read online. Six years of account statements, highest balance for each.

It sounds impossible when two of the banks have merged and one closed the account in 2020. So nothing happens.

In practice missing records are a solvable problem. Britain keeps long paper trails, and the law gives you a right to most of them within a month.

Key takeaways

• A data request forces a bank to hand over what it holds.
• Banks keep customer records for years after an account closes.
• HMRC can supply an employment history going back decades.
• Interest certificates exist for every year, on request.
• A documented estimate covers missing records that never surface.
• Explain the method rather than quietly rounding a figure.
• Gathering papers takes longer than preparing the returns.

What is a missing record?

Anything the submission needs that you cannot produce: a statement, an interest figure, a pension value, a sale contract. Missing records matter more for some items than others. A highest balance is awkward, while a dividend voucher is usually rebuilt from elsewhere.

So start by listing what you need rather than what you have. Missing records only matter once you know which ones you need.

The list is shorter than people fear, and most of it still exists somewhere.

What can you force a bank to give you?

Everything it holds about you, under a data subject access request. That single letter closes most missing records. British data law gives you that right free of charge, with a response due within one month. Banks handle these routinely and most produce years of transaction history without argument.

Ask specifically for statements and year end balances rather than everything.

A narrow request comes back faster and in a usable format.

A worked example

Take an illustrative example. An American in Cardiff needs six years of balances and has statements for two of them.

A data request to her current bank returns seven years of transactions within three weeks, closing most of the missing records at once. Her old building society, absorbed by a larger group, answers through the acquiring bank.

One account remains genuinely unrecoverable, a savings account closed in 2019 holding roughly £6,000.

She reports a documented estimate for that one and explains the method in her certification. Nothing further is heard about it.

What the sources give you

How far back must a bank keep things?

Money laundering rules oblige British firms to retain customer records for a set period after a relationship ends, commonly five years. Many banks keep considerably longer for their own purposes. A closed account from 2018 is therefore often still recoverable in 2025.

Ask rather than assuming the answer is no.

In our practice banks produce old records more often than clients expect.

What does HMRC hold about you?

More than most people realise, and it is free to obtain. Your personal tax account shows employment income and tax paid by year. A separate request produces a full employment history listing every employer and the dates you worked for them.

That history is invaluable where you have lost old payslips.

According to GOV.UK guidance on the personal tax account, several years of pay and tax detail appear online.

How do you get the interest figures?

Every British bank issues a certificate of interest for a tax year on request, usually free. It states the gross interest credited, which is exactly what an American return needs. Most banks produce them within a fortnight.

Ask for all six years in one letter rather than six separate requests.

The figures run to the British tax year, so expect to apportion them.

What about investments and pensions?

Platforms issue consolidated tax certificates each year and generally keep them available online indefinitely. Pension providers hold annual statements showing value and contributions. Both respond to a data request if the online archive falls short.

Our guide to UK pensions and US retirement reporting covers what the submission actually needs.

Workplace schemes route requests through the employer, which adds a fortnight.

Can you use an estimate?

Yes, where genuine effort has failed to produce the real figure. The foreign account report accepts a reasonable estimate with an explanation attached. What matters is that the method is sensible and that you say openly what you did.

Document the attempts as well as the estimate.

Our guide to delinquent FBAR submissions covers the disclosure wording.

How should you document the method?

In plain language, year by year, saying which records existed and how you bridged the gap. A line explaining that a closed account held roughly a known sum, based on the last surviving statement, is far better than a bare number. Transparency is the protection here.

Keep the refusal letters from any institution that could not help.

Those letters are evidence of effort, which is what the standard asks for.

Does an estimate weaken the certification?

Not where you explain it. The certification addresses whether the failure to file was deliberate, which is a question about your state of mind rather than your filing cabinet. Honest estimates supported by effort fit comfortably within that.

Our guide to the Form 14653 certification covers the drafting.

Silent rounding is the thing that causes trouble, not estimation itself.

What if an institution no longer exists?

Follow the acquisition trail, because British banking consolidation means somebody inherited the records. A building society absorbed into a larger group usually transfers customer data with the book. The acquiring firm then answers a data request.

Where a firm genuinely failed, the compensation scheme may hold information.

That route is slow but occasionally the only one left.

How do you handle property records?

Land registry entries give the purchase date and price for a few pounds, which fixes the base cost of a home. Your conveyancer holds the completion statement, often for fifteen years. Together they rebuild a sale computation without the original file.

Improvement costs are harder, since receipts vanish.

Bank statements showing payments to a builder can stand in their place.

What about currency conversion?

Use the published year end rate for balances and a consistent method for income. The point is consistency across all six years rather than precision in any one. Switching methods between years invites questions that nothing else in the file raises.

Our guide to exchange rates on a US return sets out the accepted sources.

Record which rate you used alongside each figure.

Do missing records delay the filing?

Missing records are usually the whole delay. Preparing three returns takes days once the papers exist, while gathering six years of history takes two or three months. Starting the requests early is the single most useful thing you can do.

Send every data request on the same day.

They run in parallel, so the month's wait happens only once.

What if you genuinely cannot reconstruct a year?

You still file, with the best figure available and a clear note about the missing records behind it. Omitting a year entirely is far more damaging than reporting it imperfectly. The programme is built for people whose affairs went unmanaged, which usually means the paperwork went too.

In our practice we have never seen a submission fail over a documented estimate.

We have seen plenty of trouble from omissions.

Should you wait until everything arrives?

No, because the risk of waiting outweighs the benefit of completeness. The programme closes the moment the IRS contacts you about the years in question. A submission with one documented estimate beats a perfect submission that never gets sent.

Set a deadline for the record gathering and hold to it.

Late arrivals can support an amendment afterwards if they change anything material.

What if a joint account holder has the papers?

Then ask them, because a joint holder has the same right to the history as you do. Former partners complicate that, though a data request in your own name still works. The bank holds the account under both names regardless of who kept the files.

So a difficult separation does not actually block you.

In our practice this worry stops people far more often than it should.

Does a dormant account still need reporting?

Yes, for every year it existed, even where nothing moved in it. Dormancy changes the balance rather than the duty. Banks transfer genuinely abandoned accounts to a reclaim scheme, which can itself confirm the sums involved.

Check the reclaim scheme before writing a balance off as unknowable.

It often produces the exact figure you needed.

How do you handle a foreign pension you forgot?

Trace it through your employment history, which lists every employer and the dates. A pension tracing service then finds the scheme administrator. Old workplace schemes get transferred and renamed constantly, so the original name rarely helps.

Allow six weeks for an administrator to respond on an old scheme.

Start that search first, because it is the slowest of all of them.

What does it cost to rebuild?

Very little in fees, because data requests are free and interest certificates usually are too. Land registry titles cost a few pounds each. The real cost is elapsed time, and the professional hours spent assembling a coherent picture from fragments.

Budget for the assembly rather than the retrieval.

Clients consistently expect the opposite split.

What records should you keep afterwards?

Keep everything you gathered, the requests you sent and any refusals you received about missing records. Together they are the evidence that you made a real effort, which is the point the whole exercise turns on.

Store them as searchable scans in one folder per year.

Six years from submission is the minimum retention period.

How to rebuild missing records

1. List every account, employer and asset for the six years.
2. Send a data request to each bank on the same day.
3. Ask every bank for annual interest certificates as well.
4. Open your personal tax account and download the pay history.
5. Request an employment history from HMRC for older years.
6. Download platform and pension statements from the archives.
7. Buy land registry titles for any property you owned.
8. Document an estimate for whatever missing records remain.

Mistakes and penalties we see with missing records

The first is waiting until no missing records remain. The programme can close while you wait.

The second is estimating silently. An unexplained round number looks worse than a documented approximation.

The third is forgetting closed accounts entirely. They count for every year they existed.

The fourth is sending data requests one at a time, which turns one month into six.

How US UK Tax Accountants helps

We send the data requests for clients and chase the slow ones, because the letters follow a pattern and banks respond better to a familiar format. Then we build the six year picture and flag what is genuinely unrecoverable.

Where an estimate is needed, we document it properly inside the submission. Our streamlined filing service covers the whole exercise.

If paperwork is the only thing standing between you and filing, get in touch and we will start the requests.

Last reviewed 15 October 2026. This article is general information and not personal tax advice. Every history is different, so take advice on your own before filing.