Choose Upgrades for the Problem in Front of You

The best upgrades are the ones that turn a struggling run into enough income to cover the next bill. In Bills Must Be Paid, a powerful-looking node can still be a bad purchase if it does not fix what is limiting your current run.

Watch the desk instead of following a rigid skill tree route. Your hammer, stamina, available Piggies, and income all need to work together. If one part falls behind, buying more of something else usually wastes cash that could have protected your next payment.

What you see during a runYour current bottleneckBest upgrade focus
The desk is empty with stamina remainingNot enough targetsStarting Piggies, spawn effects, spawn rate
Piggies survive many hitsDamage is too lowBase Damage, critical stats, better hammer
The run ends with killable Piggies leftStamina is too lowMaximum stamina, stamina efficiency
You clear the desk but bills outpace earningsIncome value is too lowLoot, Luck, glowing rewards, value effects
One tough Piggy absorbs most of the runYou need a kill breakpointHammer upgrade, damage, crit damage

Use ordinary runs to diagnose the issue. A rare jackpot can make an underpowered setup look better than it is, so wait for the same problem to appear more than once before committing most of your reserve.

Bills Must Be Paid screenshot 2
Image: Steam

Best Early Upgrade Order

A safe early path prioritizes reliable kills first, then enough targets and stamina to use those kills. Damage is normally the most useful opening investment because it reduces the number of swings needed to break basic Piggies.

Once opening targets die comfortably, add only the support upgrades your desk actually needs. The goal is a stable loop: targets are present, they die at a reasonable pace, stamina lasts long enough to use the available opportunities, and earnings leave the next bill secure.

A practical early order is:

  • Buy Base Damage until opening Piggies no longer consume most of the run.
  • Take a modest stamina upgrade if your run ends with targets still available.
  • Add Starting Piggies or spawn effects only when you are waiting for new targets.
  • Choose radius or collateral effects when multiple Piggies regularly share the desk.
  • Add Attack Speed after kills are already reliable and targets remain available.
  • Shift toward Loot and Luck once combat no longer blocks progress.
Upgrade typeBuy it early when...Delay it when...
Base DamageCurrent Piggies need too many hitsYou already one-shot targets and lack spawns
StaminaKillable Piggies remain when the run endsA durable Piggy cannot be killed anyway
Starting PiggiesThe opening desk is sparseThe desk already stays crowded
Spawn RateYou repeatedly wait for targetsExisting Piggies survive too long
Hit Radius / collateralSeveral targets can be hit togetherTargets are too spread out or too durable
Attack SpeedTargets die quickly and stamina supports more swingsYou are swinging at an empty desk

Do not treat every unlocked node as a purchase recommendation. Early cash is especially valuable because it may be the difference between paying a bill on time and entering a weaker recovery cycle.

Video: Bills Must Be Paid gameplay and trailer

Damage, Speed, and Hammer Priorities

Attack Speed feels immediately satisfying, but it is not automatically one of the best upgrades. Faster weak swings still spend stamina, and they do little when the desk is empty or a high-health Piggy will not die before the run ends.

Prioritize damage when a new Piggy tier creates an effective health wall. Base Damage, critical chance, critical damage, first-hit effects, and a stronger hammer can reduce the number of required swings. That creates more value per stamina point and often improves the entire run at once.

Attack Speed becomes excellent after your build reaches a stable damage threshold. More swings then mean more completed kills, more chances to trigger on-hit effects, and faster use of area or collateral damage.

SituationBetter choiceWhy
Crowded desk, durable PiggiesDamage or critical upgradesMore targets do not help until they can be removed
Crowded desk, quick killsAttack Speed, radius, collateralExtra swings convert directly into more clears
Empty desk, stamina leftStarting Piggies or spawn upgradesThere is nothing useful for speed to hit
One valuable Piggy blocks the runHammer or direct damageA reliable breakpoint matters more than volume
Several nearby weak PiggiesRadius or multi-target effectsOne swing can complete multiple kills

Hammers are packages of trade-offs rather than automatic upgrades. Compare their damage, critical chance, radius, and speed against your current bottleneck. A faster, wider hammer may excel at clearing weak crowds, while a stronger or critical-focused hammer can be better for durable targets.

Buy a new hammer when it produces a meaningful kill breakpoint and still leaves enough money for the next bill. If your current hammer already clears efficiently, save the money for a more urgent upgrade or future bill.

Bills Must Be Paid screenshot 3
Image: Steam

Scale Income Without Risking the Bill

Loot, Luck, glowing-reward effects, and similar income multipliers are strongest after the build can consistently destroy Piggies. They improve the value of successful kills, but they do not solve a desk full of targets that survive every hit.

Separate bill money from upgrade money before every major purchase. If you have $500 and an upcoming bill costs $350, your real upgrade budget is $150. Spending the entire amount on a promising hammer can still be a loss if it makes the bill unsafe.

Upgrade categoryBest time to investMain benefitMain risk
LootYou already clear available targetsMore value from each destroyed PiggyDoes not solve low damage
LuckIncome is stable over several runsBetter access to favorable random rewardsResults can be inconsistent
Glowing or high-value rewardsYou can kill enough targets to trigger them oftenStrong long-term income scalingWeak if runs end early
Midas-style multipliersLate-game, stable buildExpands earnings from successful runsPoor emergency purchase
Super JackpotDeep into a comfortable economyLong-term farming potentialHigh cost can endanger the bill reserve

Avoid buying expensive late-game effects just because they are available. Super Jackpot and other large investments are better treated as farming tools, not emergency progression fixes. Purchase them only after regular income comfortably covers bills and core combat upgrades.

Bankruptcy is also part of progression, not simply failure. When a run cannot reasonably meet future bills, a reset can convert progress into permanent power. Rings and bracelets purchased with prestige currency improve later cycles, making the next start faster and more reliable.

FAQ

What are the Bills Must Be Paid best upgrades for a new player?

Start with enough Base Damage to break early Piggies efficiently. Add stamina if killable targets remain when a run ends, then add Starting Piggies or spawn upgrades if the desk becomes empty. Attack Speed is usually better after targets die quickly and remain available.

Should I buy Attack Speed early?

Not by default. Attack Speed is weak when you are waiting for Piggies or when your hits are too weak to finish them. Buy damage first against tough Piggies, and buy target-generation upgrades if the desk is empty.

When should I upgrade my hammer?

Replace your hammer when a new option solves a clear issue, such as a damage breakpoint against a durable Piggy or better area coverage for crowded desks. Do not buy it if the cost puts the next bill at risk.

Are Loot and Luck upgrades worth it?

Yes, but mainly after combat is stable. Loot and Luck improve income from completed kills; they are not a substitute for damage, stamina, or enough targets.

How do I know whether I need stamina or more spawns?

Check how a normal run ends. If stamina remains but the desk is empty, buy more starting targets or spawn effects. If Piggies remain and are already killable, improve stamina. If one Piggy survives almost the entire run, prioritize damage instead.