Moving Home in 2026: A Month-by-Month Budget and Mortgage Timeline

Moving home involves more overlapping deadlines and costs than most people expect going in. Here’s a realistic month-by-month framework, drawing together the mortgage, tax, and budgeting threads covered across this content library.

3-6 months before: financial groundwork

• Get a mortgage agreement in principle, giving you a realistic budget before you start seriously viewing properties.
• If you’re porting an existing mortgage, check with your lender now whether your product is portable and what the process involves (see our dedicated porting article), since this affects how you approach house-hunting.
• Review your deposit and where it’s held - if some of it is invested, consider your timeline for accessing it without being forced to sell at a bad moment.
• If you’re planning to keep your current property and let it out rather than selling it, check the tax and mortgage implications first (see our dedicated buy-to-let article), since the numbers look considerably different from a straightforward residential move.
• If you’re a first-time buyer, make sure any Lifetime ISA has been open at least 12 months before you plan to use it, since this is a qualifying condition for penalty-free withdrawal (see our dedicated LISA article).

1-3 months before: property search and offer

• Budget for Stamp Duty Land Tax based on your realistic target price range (see our dedicated stamp duty article) - this is a cash cost due within 14 days of completion, not something that can typically be added to your mortgage.
• Commission your own survey once an offer is accepted, separate from the lender’s valuation, which exists to protect the lender’s lending decision rather than to flag issues that matter to you as a buyer.
• Instruct a conveyancer or solicitor promptly, since conveyancing typically takes 8-12 weeks and is often the least predictable part of the timeline.

During the mortgage application

• Expect a full affordability assessment (see our dedicated affordability rules article), including a hard credit check - avoid taking on new credit commitments or making unusual, hard-to-explain transactions during this period.
• If you’re self-employed, have your accounts and tax records fully up to date well before this stage (see our dedicated self-employed mortgage article), since gathering this documentation late is one of the most common sources of delay.

1-4 weeks before completion: the final costs

• Confirm your exact completion funds needed, including Stamp Duty, conveyancing fees, mortgage arrangement or broker fees, and any survey costs - these add up beyond just the deposit itself.
• Arrange removals and time off work, since completion day itself often involves a tight window for moving.
• Set up or transfer buildings insurance, typically required from the point of exchange, not just completion.

The month after moving in

• Register for council tax at the new address promptly, to avoid any gap or confusion in billing (see our dedicated council tax article in the Budgeting series).
• Update your address for banks, employer, and any government services, including your electoral roll registration, which can affect your credit file.
• Set up a home maintenance sinking fund (see our dedicated sinking fund article) if you don’t already have one, since a new property often brings its own set of predictable but irregular maintenance costs.

Budgeting for costs beyond the obvious

Beyond the deposit, stamp duty, and legal fees, budget explicitly for: removal costs, a period of overlapping costs if there’s any gap between selling and buying (or between tenancies, if renting until completion), immediate essential purchases for the new property, and a buffer for the inevitable unexpected costs that surface once you’re actually living somewhere new.

The bottom line

Moving home has a genuinely long timeline with several distinct phases, each with its own costs and deadlines - starting the financial groundwork three to six months ahead, rather than only once you’ve found a property, gives considerably more room to handle the inevitable delays and surprises along the way.