diff --git a/app/components/add-reimbursement/component.js b/app/components/add-reimbursement/component.js
index 5fc0397..58bcda1 100644
--- a/app/components/add-reimbursement/component.js
+++ b/app/components/add-reimbursement/component.js
@@ -27,6 +27,10 @@ export default class AddReimbursementComponent extends Component {
     this.exchangeRates.fetchRates();
   }
 
+  get contributorId () {
+    return this.recipientId || this.kredits.currentUser?.id;
+  }
+
   get isValidTotal () {
     return isValidAmount(this.total);
   }
@@ -70,7 +74,7 @@ export default class AddReimbursementComponent extends Component {
   }
 
   updateTotalAmountFromFiat() {
-    let btcAmount = parseFloat(this.total);
+    let btcAmount = 0;
 
     if (this.exchangeRates.btceur > 0 && this.totalEUR > 0) {
       btcAmount += (this.totalEUR / this.exchangeRates.btceur);
@@ -104,7 +108,7 @@ export default class AddReimbursementComponent extends Component {
 
   @action
   updateContributor (event) {
-    this.recipientId = event.target.value;
+    this.recipientId = parseInt(event.target.value);
   }
 
   @action
@@ -136,12 +140,12 @@ export default class AddReimbursementComponent extends Component {
     if (!this.kredits.currentUser) { window.alert('You need to connect your RSK account first.'); return false }
     if (!this.kredits.currentUserIsCore) { window.alert('Only core contributors can submit reimbursements.'); return false }
 
-    const contributor = this.contributors.findBy('id', parseInt(this.recipientId));
+    const contributor = this.contributors.findBy('id', this.contributorId);
 
     const attributes = {
       amount: parseInt(parseFloat(this.total) * 100000000), // convert to sats
       token: config.tokens['BTC'],
-      recipientId: parseInt(this.recipientId),
+      recipientId: this.contributorId,
       title: `Expenses covered by ${contributor.name}`,
       description: this.description,
       url: this.url,
diff --git a/app/components/add-reimbursement/template.hbs b/app/components/add-reimbursement/template.hbs
index 0e6a74c..271d67a 100644
--- a/app/components/add-reimbursement/template.hbs
+++ b/app/components/add-reimbursement/template.hbs
@@ -2,8 +2,7 @@
   <label>
     <p class="label">Contributor:</p>
     <p>
-      <select required {{on "change" this.updateContributor}}>
-        <option value="" selected disabled hidden></option>
+      <select id="contributor" required {{on "change" this.updateContributor}}>
         {{#each this.contributors as |contributor|}}
           <option value={{contributor.id}} selected={{eq this.contributorId contributor.id}}>{{contributor.name}}</option>
         {{/each}}
@@ -15,6 +14,7 @@
       <p class="label">Total amount (BTC):</p>
       <p>
         <Input @type="text"
+               @name="total-btc"
                @placeholder="0.0015"
                @value={{this.total}}
                @required={{true}}
@@ -50,7 +50,9 @@
 
     <p class="actions">
       <button {{on "click" this.showExpenseForm}}
-        class="green small" type="button">+ Add another item</button>
+        id="add-another-item" class="green small" type="button">
+        + Add another item
+      </button>
     </p>
   {{else}}
     <p>No line items yet.</p>
diff --git a/app/controllers/budget.js b/app/controllers/budget.js
index f932b83..1f2ddc8 100644
--- a/app/controllers/budget.js
+++ b/app/controllers/budget.js
@@ -1,10 +1,26 @@
 import Controller from '@ember/controller';
 import { inject as service } from '@ember/service';
 import { alias } from '@ember/object/computed';
+import { action } from '@ember/object';
 
 export default class BudgetController extends Controller {
   @service kredits;
+  @service router;
 
   @alias('kredits.reimbursementsUnconfirmed') reimbursementsUnconfirmed;
   @alias('kredits.reimbursementsConfirmed') reimbursementsConfirmed;
+  @alias('kredits.currentUserIsCore') currentUserIsCore;
+
+  @action
+  addReimbursement () {
+    if (!this.kredits.currentUser) {
+      window.alert('You need to connect your RSK account first.');
+      return false;
+    }
+    if (!this.kredits.currentUserIsCore) {
+      window.alert('Only core contributors can submit reimbursements.');
+      return false;
+    }
+    this.router.transitionTo('reimbursements.new');
+  }
 }
diff --git a/app/templates/budget.hbs b/app/templates/budget.hbs
index 3d11012..b75c936 100644
--- a/app/templates/budget.hbs
+++ b/app/templates/budget.hbs
@@ -1,22 +1,6 @@
 <main id="budget">
 
   <div id="aside">
-    <!-- <section id="main&#45;nav"> -->
-    <!--   <header> -->
-    <!--     <h2>Budget</h2> -->
-    <!--   </header> -->
-    <!--   <div class="content"> -->
-    <!--     <ul> -->
-    <!--       <li> -->
-    <!--         <LinkTo @route="budget.expenses">Expenses</LinkTo> -->
-    <!--       </li> -->
-    <!--       <li> -->
-    <!--         <a href="#">Rewards</a> -->
-    <!--       </li> -->
-    <!--     </ul> -->
-    <!--   </div> -->
-    <!-- </section> -->
-
     <section id="funds">
       <header>
         <h2>Community funds</h2>
@@ -33,7 +17,11 @@
         <header class="with-nav">
           <h2>Proposed Reimbursements</h2>
           <nav>
-            <LinkTo @route="reimbursements.new" @title="Submit a reimbursement" class="button small green">add</LinkTo>
+            <button type="button" class="button small green"
+                    title="Submit a reimbursement"
+                    {{on "click" this.addReimbursement}}>
+              add
+            </button>
           </nav>
         </header>
         <div class="content">
@@ -47,7 +35,11 @@
         <header class="with-nav">
           <h2>Confirmed Reimbursements</h2>
           <nav>
-            <LinkTo @route="reimbursements.new" @title="Submit a reimbursement" class="button small green">add</LinkTo>
+            <button type="button" class="button small green"
+                    title="Submit a reimbursement"
+                    {{on "click" this.addReimbursement}}>
+              add
+            </button>
           </nav>
         </header>
         <div class="content">
diff --git a/package-lock.json b/package-lock.json
index 95d6291..341a694 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6816,7 +6816,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001332",
+      "version": "1.0.30001599",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001599.tgz",
+      "integrity": "sha512-LRAQHZ4yT1+f9LemSMeqdMpMxZcc4RMWdj4tiFe3G8tNkWK+E58g+/tzotb5cU6TbcVJLr4fySiAW7XmxQvZQA==",
       "dev": true,
       "funding": [
         {
@@ -6826,9 +6828,12 @@
         {
           "type": "tidelift",
           "url": "https://tidelift.com/funding/github/npm/caniuse-lite"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
         }
-      ],
-      "license": "CC-BY-4.0"
+      ]
     },
     "node_modules/capture-exit": {
       "version": "2.0.0",
@@ -29050,7 +29055,9 @@
       }
     },
     "caniuse-lite": {
-      "version": "1.0.30001332",
+      "version": "1.0.30001599",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001599.tgz",
+      "integrity": "sha512-LRAQHZ4yT1+f9LemSMeqdMpMxZcc4RMWdj4tiFe3G8tNkWK+E58g+/tzotb5cU6TbcVJLr4fySiAW7XmxQvZQA==",
       "dev": true
     },
     "capture-exit": {
diff --git a/tests/integration/components/add-reimbursement/component-test.js b/tests/integration/components/add-reimbursement/component-test.js
index a35da24..fa9a572 100644
--- a/tests/integration/components/add-reimbursement/component-test.js
+++ b/tests/integration/components/add-reimbursement/component-test.js
@@ -1,13 +1,58 @@
 import { module, test } from 'qunit';
 import { setupRenderingTest } from 'ember-qunit';
-import { render } from '@ember/test-helpers';
+import { click, fillIn, render } from '@ember/test-helpers';
 import { hbs } from 'ember-cli-htmlbars';
+import contributors from '../../../fixtures/contributors';
 
 module('Integration | Component | add-reimbursement', function(hooks) {
   setupRenderingTest(hooks);
 
-  test('it works', async function(assert) {
+  hooks.beforeEach(function() {
+    let kredits = this.owner.lookup('service:kredits');
+    kredits.set('contributors', contributors);
+    kredits.set('currentUser', contributors.findBy('id', 3));
+  });
+
+  test('Contributor select menu', async function(assert) {
+    await render(hbs`<AddReimbursement />`);
+
+    assert.equal(this.element.querySelectorAll('select#contributor option').length, contributors.length,
+      'contains correct amount of items');
+
+    assert.equal(this.element.querySelector('select#contributor option:checked').value, "3",
+      'preselects the connected contributor account');
+  });
+
+  test('Adding expense items', async function(assert) {
     await render(hbs`<AddReimbursement />`);
-    assert.ok(true);
+
+    assert.dom(this.element).includesText('New expense item');
+
+    await fillIn('form input[name="expense-amount"]', '49');
+    await fillIn('form input[name="expense-title"]', 'Domain kosmos.org (yearly fee)');
+    await click('form#add-expense-item input[type="submit"]');
+
+    assert.equal(this.element.querySelector('input[name="total-eur"]').value, '49',
+      'updates the total EUR amount');
+    assert.equal(this.element.querySelector('input[name="total-usd"]').value, '0',
+      'does not update the total USD amount');
+    assert.equal(this.element.querySelector('input[name="total-btc"]').value, '0.00534493',
+      'updates the total BTC amount');
+
+    assert.dom(this.element).doesNotIncludeText('New expense item');
+
+    await click('button#add-another-item');
+
+    await fillIn('form input[name="expense-amount"]', '29');
+    await fillIn('select[name="expense-currency"]', 'USD');
+    await fillIn('form input[name="expense-title"]', 'Domain kosmos.social (yearly fee)');
+    await click('form#add-expense-item input[type="submit"]');
+
+    assert.equal(this.element.querySelector('input[name="total-usd"]').value, '29',
+      'updates the total USD amount');
+    assert.equal(this.element.querySelector('input[name="total-eur"]').value, '49',
+      'does not update the total EUR amount');
+    assert.equal(this.element.querySelector('input[name="total-btc"]').value, '0.00804268',
+      'updates the total BTC amount');
   });
 });