How can crypto tax software use Bitquery's data?

Crypto tax platforms use Bitquery as their underlying on-chain data source: Enterprise-depth transaction history per wallet across 40+ chains, with USD and fiat valuations at transaction time, decoded contract calls and DeFi position changes. You build the tax-rules engine; Bitquery provides the verified ground-truth data.

Does Bitquery provide cost basis and FIFO/LIFO data?

Bitquery delivers raw on-chain events — every buy, sell, transfer, swap, mint and claim — with historical USD and fiat valuations. Tax platforms apply their own cost-basis methodology (FIFO/LIFO/HIFO/specific identification) on top.

Can I get DeFi income (staking, yield farming, lending) data?

Yes. We decode and index lending interest accrual, liquid staking rewards, yield farming, liquidity provision and validator staking — all the income events tax software needs to classify.

For crypto tax, accounting & audit firms

Audit-grade transaction & balance data, with Enterprise depth.

Every token transfer, trade and balance — complete and correct across 40+ chains on Enterprise, with historical fiat pricing. The verified on-chain ledger crypto tax, accounting and audit teams reconcile against, including point-in-time and end-of-year balances.

Talk to sales →Start free

Trusted by leading Web3 teams

Trusted by leading crypto tax, accounting & audit teams

The challenge

Tax and audit work is only as correct as the data underneath.

A missing transfer, an unpriced token or a balance that doesn't tie out becomes a wrong cost basis and a failed reconciliation. Tax and audit firms need data that is complete, correct and provable — deep history through year-end.

Incomplete history & gaps

Node-and-decoder-per-chain setups miss transfers and can't cover deep historical ranges — so prior-year cost basis is wrong.

No reliable historical balances

Without point-in-time and end-of-year balances per wallet, audits can't confirm holdings or tie out to the books.

Unpriced & undecoded activity

Missing fiat valuation at transaction time, plus messy DeFi and NFT events, break reconciliation and reporting.

How it works

From raw chains to audit-ready records.

We index, value, decode and reconcile on-chain activity so tax and audit teams get correct, complete data — not raw RPC.

Ingest

Complete transfer and trade history per wallet on Enterprise — across 40+ chains.

Value

Historical fiat prices at transaction time, plus wallet balances at any date — including 31 Dec / fiscal year-end.

Reconcile

Decoded swaps, DeFi income and NFT activity classified so balances and cost basis tie out.

Export

GraphQL at submission time or bulk, audit-ready exports to your warehouse (Snowflake, BigQuery, S3).

What you get

Everything a crypto tax & audit workflow needs.

Complete, correct ledger

Every buy, sell, swap, mint and transfer per wallet — Enterprise-depth history across 40+ chains. The verified ground-truth record for tax and audit.

End-of-year & point-in-time balances

Exact wallet balances at 31 Dec or any fiscal year-end — for audit confirmations, proof of holdings and balance-sheet reconciliation.

Full historical balance lookups

Reconstruct a wallet's holdings at any date and block, for any token, on any supported chain — no need to replay logs yourself.

Historical prices in fiat

USD, EUR and major-fiat valuations at transaction time across 1.8M+ token pairs, for accurate cost basis and gain/loss.

DeFi & NFT decoding

Staking rewards, lending interest, yield, LP positions and NFT mints/sales decoded into classifiable income and cost-basis events.

Audit-ready delivery

GraphQL API for on-demand lookups, plus bulk warehouse exports (Snowflake, BigQuery, S3) with a complete, reproducible audit trail.

Built on Bitquery

The Bitquery products tax & audit teams build on.

Each is a production API with its own docs and SLAs — composed for accounting, tax and audit workflows.

TxToken & Transfer API →Complete, correct transfer history on Enterprise — the ledger every report ties to.AbAddress & Balance API →Historical balances at any date — point-in-time and year-end, per wallet.PhProof of Holdings →End-of-year and on-demand proof of wallet holdings for audit confirmations.PrToken Price / OHLCV API →Historical USD, EUR and fiat prices at transaction time for cost basis.WpWallet Portfolio →Per-wallet holdings and history for portfolio views and tax statements.DsCloud Datashares →Bulk, audit-ready wallet history delivered to your warehouse for batch runs.

40+

Blockchains covered

Enterprise

deep history

1.8M+

Token pairs priced

any-date

Historical balances

"Partnering with Bitquery has been highly cost-effective — leveraging their established infrastructure rather than building our own let us rapidly expand our blockchain support and reach a much broader segment of on-chain users."

Nick Christie

Co-Founder, Syla

Bitquery does the hard work of parsing blockchain transaction data into a usable form so that we don't have to. We use their interface to diagnose issues with complex transactions and their analytics as a starting point for our own.

Alex Knaggs0x Protocol

They proved they had the technology to deliver sophisticated data solutions. We extended our support through the Binance X fellowship — building an open-source library of visualization widgets on their blockchain data.

Flora SunDirector, Binance X

The complex raw data is available at different levels of detail and from different viewpoints — whether we need simple aggregated transfers or parameters for failed contract calls. The support is responsive, friendly and quick.

Jan DreskeBackend Developer, Blockpit

Bitquery's products are very intuitive and easy to use. We rely on them for DEX trading and liquidity data — saving us the manpower and tedious technical details of building our own system. Their team gives near-24/7 support and resolves issues fast.

Data TeamOurbit

Bitquery provides the infrastructure we rely on every day. Fast, reliable, and comprehensive across the chains that matter to our business.

WebacyWebacywebacy.com

FAQ

Crypto tax & audit data, answered.

How do crypto tax, accounting and audit firms use Bitquery?

As the verified on-chain data source behind their products: Enterprise-depth transaction history per wallet across 40+ chains, historical fiat valuations at transaction time, historical and end-of-year balances, and decoded DeFi/NFT activity. You build the tax-rules or audit logic; Bitquery provides the correct, reproducible ground-truth data.

Can I get a wallet's balance at a specific date or year-end?

Yes on Enterprise. You can reconstruct a wallet's holdings for any token at any date or block — including 31 December or any fiscal year-end — which audit teams use for balance confirmations, proof of holdings and balance-sheet reconciliation, without replaying logs yourself.

How far back does the transaction history go?

Tax and audit workloads use Enterprise for complete, gap-free transfer and trade history so prior-year cost basis and reconciliations are correct. Self-service plans include a live window with optional archive add-ons on core chains.

Which blockchains are supported?

All major chains used by retail and institutional users: Bitcoin, Ethereum, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Base, Tron, TON, Cardano, XRP, Litecoin, Avalanche and 25+ more. Tron coverage is especially relevant for USDT-heavy cases.

Does Bitquery provide cost basis and FIFO/LIFO?

Bitquery delivers raw, correct on-chain events with historical fiat valuations; tax platforms apply their own cost-basis methodology (FIFO/LIFO/HIFO/specific-ID) on top, since rules differ by jurisdiction.

How is the data delivered for audit?

GraphQL API for on-demand lookups, plus bulk exports to Snowflake, BigQuery or S3 — giving auditors a complete, reproducible record of on-chain activity and balances.

Correct data. Deep history. Across every chain.

Talk to our team about a tax-, accounting- and audit-ready Enterprise data stack — complete history, balances and pricing.

Talk to sales →Start free

Enterprise · 40+ chains · end-of-year balances · historical fiat pricing