Arbitrum is Ethereum's largest Layer 2 scaling solution by total value locked (TVL), developed by Offchain Labs and founded by Ed Felten, Steven Goldfeder, and Harry Kalodner. Arbitrum uses Optimistic Rollup technology: transactions are executed off-chain in batches, compressed, and posted to Ethere...
e.g. 0.80
🔹 Arbitrum tip: Arbitrum is Ethereum's largest Layer 2 by TVL, using Optimistic Rollup technology to batch transactions off-chain and post proofs to Ethereum mainnet. Gas fees on Arbitrum are typically 10–50× cheaper than Ethereum L1. The ARB token governs Arbitrum One and Arbitrum Nova via the Arbitrum DAO — it does not accrue protocol fees directly, making governance participation the primary utility.
Short-term gains (<1 year) taxed as ordinary income (10%–37%).
NET PROFIT
+$1,996.00
ROI
+199.40%
ARB BOUGHT
1250.00
BREAK-EVEN
$0.8016
AFTER-TAX
+$1,556.88
NET PROFIT
+$1,996.00
ROI
+199.40%
PRICE CHANGE
+200.00%
MULTIPLIER
3.00×
COST BASIS vs NET PROCEEDS
PROCEEDS BREAKDOWN
TOTAL FEES
$4.00
TAX ESTIMATE
$439.12
AFTER-TAX PROFIT
+$1,556.88
ARB AMOUNT
1,250.00 ARB
Live diagram · updates as you type
| ARB Purchased | 1,250.00 ARB |
| Buy Price per ARB | $0.8000 |
| Sell Price per ARB | $2.40 |
| Gross Investment | $1,000.00 |
| Buy Fee | $1.00 (0.1%) |
| Cost Basis | $1,001.00 |
| Gross Proceeds | $3,000.00 |
| Sell Fee | $3.00 (0.1%) |
| Net Proceeds | $2,997.00 |
| Net Profit / Loss | +$1,996.00 |
| Return on Investment | +199.40% |
| Price Multiplier | 3.00× |
| Break-Even Price | $0.8016 |
| Tax Estimate | $439.12 (22%) |
| After-Tax Profit | +$1,556.88 |
Enter your total investment in USD — the total amount you spent to buy ARB.
Enter your buy price — ARB typically trades between $0.50 and $2.50. The default buy price of $0.80 represents a post-airdrop bear-market entry.
Enter your sell price — the current or target price per ARB. Use the live market price for unrealised P&L.
Enter your exchange fees — most major exchanges charge 0.1%–0.5% per trade for ARB.
Select your holding period — under 1 year for short-term ordinary income rates, over 1 year for long-term capital gains rates.
Select your tax rate. If you received ARB in the March 2023 airdrop, those tokens were taxable as ordinary income at their fair market value on the date received (~$1.20–$1.60). Subsequent gains or losses from that cost basis are capital gains.
Example: You invested $1,000 in ARB at $0.80 per ARB and sold at $2.40. ARB purchased = $1,000 ÷ $0.80 = 1,250 ARB. Gross proceeds = 1,250 × $2.40 = $3,000. Buy fee (0.1%) = $1.00. Sell fee (0.1%) = $3.00. Cost basis = $1,001. Net proceeds = $2,997. Net profit = $1,996. ROI = 199.40%. Break-even price = $0.8016. At 22% short-term tax rate: tax = $439.12, after-tax profit = $1,556.88.
| NAME | FORMULA | DESCRIPTION |
|---|---|---|
| ARB Amount | Investment ÷ Buy Price | ARB tokens purchased for your investment |
| Cost Basis | Investment + (Investment × Buy Fee %) | Total cost including buy-side exchange fee |
| Gross Proceeds | ARB Amount × Sell Price | Total value before sell fee deduction |
| Net Proceeds | Gross Proceeds − (Gross Proceeds × Sell Fee %) | Amount received after sell-side fee |
| Net P&L | Net Proceeds − Cost Basis | Actual profit or loss after all fees |
| ROI | (Net P&L ÷ Cost Basis) × 100 | Return on investment as a percentage |
| Break-Even | Cost Basis ÷ (ARB Amount × (1 − Sell Fee %)) | Sell price needed to exactly recover your cost basis |
| L2 Fee Saving | Ethereum L1 Gas × (1 − Arbitrum Discount %) | Approximate gas savings vs Ethereum mainnet — Arbitrum is typically 10–50× cheaper |
| Tax Estimate | max(Net P&L, 0) × Tax Rate | Estimated capital gains tax on profitable trades |
| After-Tax Profit | Net P&L − Tax Estimate | Profit remaining after estimated tax payment |
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Disclaimer: This calculator is for informational purposes only and does not constitute financial or tax advice. Cryptocurrency investments are highly volatile. Consult a qualified tax professional for advice specific to your situation.
Last updated: April 29, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.