One of the first big choices when you take a mortgage is how long to fix your rate for, and the most common decision is between a two-year and a five-year fix. This guide explains whether a first-time buyer should fix for 2 or 5 years, weighing certainty, flexibility and cost.
What a fixed rate is
A fixed-rate mortgage keeps your interest rate, and therefore your monthly payment, the same for a set period, such as two or five years. This gives certainty, protecting you from rate rises during the fixed period, though you will not benefit if rates fall. Most first-time buyers choose a fixed rate for the peace of mind it brings, as our guide to fixed versus variable rates explains.
The case for a two-year fix
A two-year fix locks your rate for a shorter period, after which you can remortgage onto a new deal. The advantages are flexibility, you are tied in for less time, and the chance to move to a lower rate sooner if rates fall. Two-year fixes sometimes have lower rates than longer fixes too. The downside is that you face the cost and uncertainty of remortgaging again in just two years.
The case for a five-year fix
A five-year fix gives you certainty for longer, fixing your payments for five years regardless of what happens to rates. This suits buyers who value stability and want to set their budget for years ahead, and it saves the cost and effort of remortgaging as often. The trade-off is less flexibility: if rates fall, you are locked in, and leaving early usually means an early repayment charge.
The rate environment in 2026
The right choice partly depends on where rates are heading. In 2026, the Bank of England base rate is 3.75%, lower than its recent peak, with further cuts anticipated. If rates are expected to fall, some buyers prefer a shorter fix so they can move to a cheaper deal sooner, while others value the certainty of a longer fix. No one can predict rates with certainty, so your own circumstances matter most.
Early repayment charges and flexibility
Fixed-rate deals usually carry early repayment charges if you leave before the end of the fixed period, and these are typically larger and last longer on a five-year fix. So if there is a chance you will need to move or change your mortgage within a few years, a longer fix could prove costly. Considering how likely you are to need flexibility is an important part of the decision.
Think about your plans
Your own plans should guide your choice. If you might move, change jobs or have your circumstances change within a few years, a shorter fix or a deal that can be ported may suit you better. If you expect to stay put and want budgeting certainty, a longer fix appeals. Matching the fixed period to how settled you expect to be helps you avoid early repayment charges and unwanted surprises.
Certainty versus flexibility
At its heart, the choice is between certainty and flexibility. A five-year fix offers more certainty and less frequent remortgaging, while a two-year fix offers more flexibility and the chance to benefit sooner if rates fall. Neither is automatically right; it depends on your priorities, your plans and your view of rates. Getting advice can help you weigh these factors for your own situation, as our guide to first-time buyer mortgages notes.
What happens at the end of your fix
When your fixed period ends, you usually move onto the lender's standard variable rate unless you act, and that rate is often higher. Most people remortgage or take a new deal at that point to avoid it, as our guide to fixed versus variable rates explains. Knowing your fix has an end date, and planning to switch before it, helps you avoid drifting onto an expensive rate.
Could you overpay during a fix?
Many fixed-rate mortgages let you overpay a certain amount each year, often up to 10%, without penalty, which can reduce your balance and interest. Beyond that limit, early repayment charges may apply. If you expect to make overpayments, check the deal's rules. The ability to overpay within limits adds useful flexibility to a fixed deal, letting you pay down your mortgage faster when you can afford to.
Shorter and longer fixes
Two and five years are the most common fixes, but others exist, including three-year, and longer ten-year fixes that lock your rate for a decade. A very long fix offers maximum certainty but the least flexibility and the largest early repayment charges. Knowing the full range helps you see two and five years as points on a spectrum, and choose the period that best matches your plans.
How fees factor in
When comparing fixes, look beyond the rate to any product or arrangement fee, as a low rate with a high fee can cost more overall, especially on a smaller mortgage, as our guide to mortgage fees explains. Working out the total cost over the fixed period, rate plus fees, lets you compare a two-year and five-year deal fairly rather than being drawn in by the headline rate alone.
A balanced way to decide
A balanced approach is to weigh how much you value certainty, how likely you are to move or change your mortgage soon, the outlook for rates, and the total cost including fees. There is no universally right answer, and reasonable people choose differently. Thinking through these factors for your own situation, ideally with advice, leads to a choice you can be comfortable with rather than one based on guesswork.
Match the fix to your life, not the headlines
It is tempting to choose a fix based on predictions about where rates are heading, but no one can forecast rates reliably. A more dependable approach is to match the fixed period to your own life: how settled you are, how much you value certainty, and whether you might move. Choosing around your circumstances rather than the headlines leads to a decision you are less likely to regret, whatever rates go on to do.
Review well before your deal ends
Whichever length you choose, get into the habit of reviewing your mortgage well before the fixed period ends, ideally a few months ahead, so you can line up a new deal and avoid slipping onto the standard variable rate. Starting your remortgage early, as our guide to first-time buyer mortgages notes, keeps you on a competitive rate and in control of your mortgage costs.
In the end, both a two-year and a five-year fix are sensible choices made by many first-time buyers; the right one is simply the one that fits your plans, your budget and how much you value certainty, so weigh those up and choose with your own circumstances in mind.
In short
Whether to fix for two or five years depends on your priorities. A two-year fix offers flexibility and the chance to move to a cheaper deal sooner, but means remortgaging again quickly. A five-year fix offers longer certainty and less frequent remortgaging, but locks you in and carries larger early repayment charges. Consider the rate outlook, your plans, and whether you value certainty or flexibility more.
Where to get help and next steps
Read our guides to fixed versus variable rates, first-time buyer mortgages explained, and common first-time buyer mistakes. This is general information, not mortgage or financial advice.