Built for Bitcoin mining operations

The CFO layer for Bitcoin miners.

See what each site earned, what it cost, and the Bitcoin price where it stops paying. Trace every number to your Bitcoin activity and bring reconciled books into QuickBooks.

See it on your data See pricing

The mining subledger behind your financial reporting.

Site economicsSample account · August 2026Price scenarioIllustrative

Revenue at the selected price: $37,3170.459 BTC received in August
Profit after site cash costs: $11,717From the costs you file
Profit fully loaded: $7,801After depreciation and $400 overhead

Bitcoin price$81,300Sample price

Drag to see how each site's profit changes with the Bitcoin price.

North site Covering full cost
Full $54,612
Revenue
$18,211
After cash costs
$7,911
Fully loaded
$5,978
South site Covering full cost
Full $68,478
Revenue
$11,219
After cash costs
$3,019
Fully loaded
$1,769
Hosted fleet Covering full cost
Full $76,629
Revenue
$7,886
After cash costs
$786
Fully loaded
$453

Illustrative sites. Costs held at August levels. Revenue shown at the selected price.

We reproduced a multi-site miner's monthly close from its source data and reconciled it to the existing books.

Understand each site

The questions your pool dashboard can't answer.

See revenue when it arrived, less the costs you file. Compare profit and break-even by site. Gains on Bitcoin sales stay separate.

Which site actually made money last month?

Revenue at the price it landed, minus the costs you file, site by site.

Profit by siteSample account · August 2026ReviewIllustrative

Site revenue at receipt, filed costs and profit, August 2026
Site	Revenue at receipt	Site cash costs Declared	Profit after costs	After depreciation
North site0.224 BTC	From exchange. 8 payouts, valued at receipt.	Declared. From the costs you file.	$7,904	$5,971
South site0.138 BTC	Imported. 6 payouts, valued at receipt.	Declared. From the costs you file.	$3,004	$1,754
Hosted fleet0.097 BTC	Imported. 5 payouts, valued at receipt.	Declared. From the costs you file.	$805	$472
Unallocated overhead	None	Declared. Company cash overhead, not allocated to a site.	Not in site profit	−$400
Company	$37,313	$25,600	$11,713	$7,797

North is the strongest site. Hosted fleet's older machines leave $472 after depreciation. Company profit also deducts $400 of declared cash overhead.

At what Bitcoin price does each site stop paying?

Your break-even for every site and every group of machines: on energy alone, on site cash costs, and fully loaded with depreciation.

Break-even by siteSample account · August 2026ReviewIllustrative

Energy: $45,316/BTCDeclared. $20,800 of energy costs, from the costs you file.
Site cash: $55,773/BTCDeclared. $25,600 of site cash costs, from the costs you file.
Fully loaded: $64,305/BTCDeclared. $29,516 of fully loaded costs, from the costs you file.

North site

Energy: $35,938
Cash: $45,982
Full: $54,612

South site

Energy: $49,638
Cash: $59,420
Full: $68,478

Hosted fleetNarrowest margin to full cost

Energy: $60,825
Cash: $73,196
Full: $76,629

Company

Energy: $45,316
Cash: $55,773
Full: $64,305

Costs are declared. Company fully loaded cost includes $400 of cash overhead, not allocated to individual sites. Revenue is valued when received, not at this reference price.

What did each group of machines earn and cost?

North site / Machine groupsSample account · August 2026Declared fleetIllustrative

S21 XP 0.162 BTCS21 Pro 0.062 BTC

North site machine economics, August 2026
Group	Units Declared	Running Declared	Uptime Declared	BTC	Cash break-even / BTC
S21 XP	Declared. From the fleet data you record.	Declared. From the fleet data you record.	Declared. From the fleet data you record.	0.162	$43,880
S21 Pro	Declared. From the fleet data you record.	Declared. From the fleet data you record.	Declared. From the fleet data you record.	0.062	$51,450
North site	20	20	By group	0.224	$45,982

Machine counts, running units and uptime are the fleet data you record. Group economics use your recorded allocation and filed costs.

Is your equipment on a schedule your accountant can use?

Every machine depreciated on a schedule, with journal entries ready to review and post to QuickBooks.

Depreciation scheduleSample account · August 2026Ready for reviewIllustrative

Straight-line, book basis Declared. The fleet register you record: units, cost and useful life.

Fleet depreciation schedule, August 2026
Group	Units	Cost	Life	Monthly charge
S21 XPNorth site	14	$70,000	48 months	$1,458
S21 ProNorth site	6	$22,800	48 months	$475
S21South site	20	$60,000	48 months	$1,250
S19j ProHosted fleet	20	$12,000	36 months	$333
August charge	60	$164,800	Straight-line	$3,516

August journal entry preview

Balanced

Depreciation expenseDebit$3,516

Accumulated depreciationCredit$3,516

Review before posting to QuickBooks.

Can someone else rely on these numbers?

Every figure shows where it came from: pulled from an exchange, imported from your files, or declared by you. Closed months are locked, and any change is recorded as a correction.

Sources and close historySample account · August 2026LockedIllustrative

From exchangePulled from your connected Kraken account.
ImportedImported from a CSV file you uploaded.
DeclaredEntered by you. Not independently verified.

North site receiptsFrom exchange. 8 payouts pulled from your connected Kraken account.
South site receiptsImported. 6 payouts imported from south-wallet-aug.csv.
North site cash costsDeclared. From the costs you file.

August 2026 · Version 1 · Locked

Revenue $37,313 · Profit $7,797

Correction recordedSep 4, 2026

Site cost classification corrected. Original close retained.

Illustrative source labels. Recorded costs and fleet data are declared, not independently verified.

Question 1 of 50:00 elapsed · 0:40 left

From payouts to the books

Your numbers. With a path back to the source.

Follow the Bitcoin
Connect Kraken and on-chain wallets, or import exchange CSVs. Map payout addresses to sites and keep unmatched activity visible for review.
Understand each site
Revenue, costs and profit by site.
Close and share the books
A reviewable handoff to QuickBooks.

Trace any number

TraceSample account · August 2026RevenueIllustrative

August revenue at receipt Choose a figure to trace it

Company revenue at receipt$37,313

Close and share the books

A reviewable handoff to QuickBooks.

Review categorization and cost basis before approving a QuickBooks export. Keep the full transaction history in Flash so your accountant can trace the entries.

Monthly closeSample account · August 2026LockedIllustrative

Step 7 of 70:24 elapsed · 0:06 left

Step 7 of 7

Review and lock. Reviewed and locked. Later changes are recorded as corrections.

August 2026 · Version 1 · Locked

Revenue at receipt: $37,313
Fully loaded costs: $29,516
Profit: $7,797

Correction recordedSep 4, 2026 · appended after lock

Site cost classification corrected. Original close retained.

Built around your numbers

Understand them. Put them in front of someone else.

For the operator

See revenue by site and the gains on the Bitcoin you sell. Keep receipts, transfers and disposals distinct.

Explore Flash for miners

For the people reviewing your books

Give your accountant or finance team a path from the reported number to the transaction and cost basis behind it.

Free accountant access

Free mining cost benchmark

Start with an estimate.

Estimate your mining costs and compare electricity costs with public miners. Then see what your own books show.

Flash calculates the same three tiers from your own books, site by site.

Try the free benchmark

01ElectricityPower only

02Site cash costThe cost of running your site

03Full operating costIncluding depreciation and cash overhead

No login. Your calculations stay in your browser.

Payments belong in the same books.

Bitcoin invoicing, plus US card and ACH through payment partners on request.

Explore payments

Books start at $30 a month.

Your first site is included, priced by size. Add sites from $50/month each, based on rig count. Accountant access is free.

See pricing

Three small sites$130/month

Books, first site$30
Additional site$50
Additional site$50

$30 Books + two additional sites at $50 each.

Each additional site has fewer than 100 rigs.