Safe to Spend, explained.
The one number that tells you what’s genuinely yours to spend - after everything that’s already spoken for.
Safe to Spend is the money you can spend today without putting your bills, commitments or savings goal at risk. Surplus works it out from your real accounts - subtracting upcoming bills, subscriptions and the amount earmarked for your goal - so the number you see is genuinely yours to spend.
Why most “left to spend” numbers lie
Most apps show your balance minus what you’ve spent. But that number still includes rent, bills, subscriptions and the cash you meant to save - money that isn’t really free. So it tells you that you have plenty, right up until you don’t.
How Surplus calculates it
Surplus connects to your accounts through read-only Open Banking, then subtracts what’s already committed - upcoming bills, recurring subscriptions and your goal contribution - from what’s actually coming in. What’s left is your Safe to Spend, recalculated as life happens.
One honest number, paced to the day.
Your home screen leads with what’s genuinely yours - after bills, essentials and the cash earmarked for your goal - and paces it against the month. Safe to spend means exactly that: spend it and nothing else suffers.
Work out what you can really afford.
A £500 coffee machine? A £5k holiday? Just ask. Surplus answers from your real safe-to-spend number, shows the working line by line and tells you what it costs the rest of your plan.
