The paperwork of buying your first home, explained

This post is for general information only. For advice specific to your situation, consult a qualified legal professional.

Buying a home generates more paperwork than almost any other life event. Most of it arrives in bursts during a stressful process when you're also managing surveys, negotiations, and moving logistics. The result is that people sign things without reading them and file things without labelling them — and spend years unable to find a specific document when they need it.

This post is a map: here's what each document is, when it appears, and whether you need to keep it.

Before you make an offer

Mortgage agreement in principle (AIP / pre-approval)

Confirms your borrowing capacity. Keep it — you'll need to show it to estate agents or realtors. It expires (typically 60–90 days), so re-confirm if your search runs long.

Proof of funds / bank statements

Required to confirm you have the deposit. Keep a copy with your purchase documents.

After your offer is accepted

Sales memorandum / offer confirmation

Written confirmation of the agreed price and parties. Keep as a record of what was agreed.

Solicitor / conveyancer instruction letter

Confirms who's handling the legal work on your behalf. File it.

Property survey report

Structural survey or homebuyer report. Keep this permanently — it documents the condition of the property at the time of purchase. Useful for insurance claims, a future sale, and any disputes about pre-existing defects.

Local authority searches (or equivalent)

Government records on planning, drainage, and road adoption near the property. Keep permanently — they're part of the legal history of the property.

At exchange

Exchange of contracts

The point at which the sale becomes legally binding on both parties. Keep the signed contracts permanently. This is one of the most important documents in the file.

Buildings insurance certificate

Typically required to start from exchange, not completion. File it with the contract.

At completion

Transfer deed (TR1 or equivalent)

The document that formally transfers ownership to you. Keep permanently and scan immediately. This is your proof of ownership.

Completion statement

The final financial settlement — what money moved where. Keep with your purchase records. It's useful for calculating any capital gains when you eventually sell.

Title register / land registry entry

Registered confirmation that you own the property. Keep permanently.

Mortgage deed

Your agreement with the lender. Keep for the life of the mortgage.

Stamp duty / property transaction tax receipt

Proof you paid the relevant property transaction tax. Keep for at least 7 years.

Ongoing documents

• Mortgage statements: Keep the current year. Old ones can be shredded once the annual statement arrives.
• Buildings insurance renewals: Keep the current policy. Previous years can go once renewed.
• Service charge / management company accounts (if leasehold): Keep for the duration of ownership.
• Guarantees for works done (windows, roof, etc.): These transfer with the property on sale — keep until you sell.

The one thing most first-time buyers miss

On the day you collect the keys, scan the completion statement, the transfer deed, and your survey. These three documents are the ones you'll search for when you least expect it — remortgaging, selling, making an insurance claim, or disputing something with a neighbour. Scanning them takes five minutes. Finding the physical copies three years later takes much longer.

Everything else on this list can be scanned in the weeks after you move in. But those three, on the day — that's the discipline that pays off.