What is a Tax NFT? The tax is 0% until graduation

I spent a full afternoon convinced a token was broken. On the bonding curve, I was paying 1% on a token whose page said 10% tax. When it graduated and I sold on Uniswap, the fee jumped. It wasn't a bug. The Tax NFT had been two different instruments all along, and I hadn't checked the phase.

If you're asking what is a Tax NFT, the honest answer isn't "a token with tax." It's a hybrid contract that changes the rules at 4 ETH. Get that part wrong and you'll misread the fee, the reward, and the risk.

The thing nobody tells you: tax is 0% before graduation

A Tax NFT on BigPump is an x405 hybrid asset: one contract holds both an ERC-20 coin (6 decimals) and an ERC-1155 NFT bound at a fixed ratio of 1 NFT = 1,000,000 tokens. You don't mint the NFT separately. Hold the coin, you hold the matching NFT. Move the coin, the NFT moves with it. That's the "NFT" part.

The "tax" part is a creator-configured transfer tax. But here's the catch that trips up apes: on the bonding curve, that creator tax is exactly 0%. You could set a 10% tax at creation, and while the token is still climbing toward its graduation target, nobody pays that 10%. You pay only the 1% pool fee on each pre-graduation buy or sell. That 1% is split 95/5 between the BigPump platform address and the token creator, paid in ETH per trade.

I've seen chats call this a scam because they saw the tax rate on the page and then saw a 1% transaction. It's not a scam. It's two phases:

So a token configured at 5% tax actually charges 6% total on Uniswap trades: the 5% creator tax plus BigPump's 1% platform fee. A 10% tax is 11% total after graduation. That's not a hidden number; it's just a number most people never add up.

A 10% Tax NFT on Uniswap is built to pay you to hold. A 10% tax on the curve would just be a toll road to zero.

What the 10% tax actually pays for (and when)

When a creator turns tax on, they pick from four presets: 1%, 3%, 5%, or 10%. Then they split that tax four ways with sliders that must total 100%:

• Treasury/Wallet — sent to a creator-chosen recipient wallet.
• Burn — tokens destroyed, reducing supply.
• Rewards/Dividends — paid to holders in ETH, not more of the memecoin.
• Liquidity — added back to the pool.

But the split only starts working after the token graduates. Graduation happens when about 4 ETH of real ETH has accumulated in the curve pool. At that point the contract creates a Uniswap V2 pair, adds the ETH and matching tokens as liquidity, and mints the LP tokens to the dead address. That liquidity is permanently locked — nobody can pull it later.

After graduation, the tax logic lives inside the token contract's transfer function. That means it applies on every transfer to or from the Uniswap pair, buys and sells alike. You can't dodge it by using a different frontend, router, or aggregator, because the tax is enforced by the token itself, not the website.

Here's the flow once tax accumulates: the contract takes the tax in tokens, holds them in the TaxHandler, and when it hits a threshold it auto-swaps them to ETH on Uniswap during sells. From there the ETH is routed to the treasury wallet, the liquidity pool, the dividend tracker, or burned. If any single leg can't be delivered, the trade still succeeds and the amount carries forward instead of reverting or disappearing.

Three numbers to check before you buy a Tax NFT

You can stop aping fresh launches if you grab three things on the BigPump token board before hitting buy:

• 1. The total tax rate, not the marketing number. A 10% token is 11% on Uniswap. A 5% token is 6%. If a token says 0% tax, it's actually 1% total after graduation because BigPump still takes its 1% platform fee.
• 2. The tax split. A token can charge 10% and give 0% to holders, or 10% and give 9% to holders. The total tax matters less than the allocation. Check that sliders add to 100% and the Rewards/Dividends share is what you think it is.
• 3. The minimum holding threshold. Dividends are proportional to holdings, but an address must hold at least the token's minimum threshold to accrue. The Uniswap pair, router, burn address, PoolState, and TaxHandler are excluded from dividends — so the ETH flows to real holders, not the plumbing.

If you only do one thing before buying, open the trade page and read the tax box. It shows the total rate, the split, and whether you're looking at pre-graduation or post-graduation trading. A token's tax behavior is not a vibe; it's an on-chain setting.

FAQ

What exactly is a Tax NFT on BigPump?

It's an ERC-20 + ERC-1155 hybrid contract where every 1 NFT is bound to 1,000,000 tokens. You hold both automatically, and the token can optionally carry a creator-configured transfer tax that starts paying dividends in ETH after graduation.

Do I pay the creator tax while the token is on the bonding curve?

No. On the bonding curve, the creator tax is 0%. You pay only the 1% pool fee. The creator tax and holder dividends apply only after graduation to Uniswap V2.

Can I avoid the tax by using another DEX?

No. The tax logic lives inside the token contract's transfer function and applies to every transfer to or from the Uniswap pair. Changing frontend, router, or aggregator does not bypass it.

One last reality check: memecoins are highly volatile and most go to zero. Nothing here is financial advice. Only spend what you can afford to lose, and always verify a token's contract, tax rate, and allocation on the trade page before you buy. If you want to dig into the mechanics, start with the Robinhood Chain memecoins guide or the BigPump FAQ.

Disclaimer: memecoins are extremely volatile and most go to zero. This article is not financial advice. Do your own research and only spend what you can afford to lose.